Data obtained 11–15 months | Data obtained outside 11–15 months | No data | p Value | |
---|---|---|---|---|
Data are shown as number (%) or mean (SD). | ||||
SDS, Standard deviation score; HFOV, high frequency oscillatory ventilation; PMA, postmenstrual age. | ||||
Number | 431 | 59 | 97 | |
Birth weight (g) | 909 (205) | 847 (223) | 894 (190) | 0.09 |
Gestational age (weeks) | 26.8 (1.4) | 26.5 (1.4) | 26.7 (1.2) | 0.23 |
Birth weight SDS | −0.49 (0.97) | −0.73 (0.94) | −0.46 (1.00) | 0.17 |
Male | 221 (51%) | 33 (56%) | 51 (53%) | 0.79 |
Multiple birth | 96 (22%) | 12 (20%) | 23 (24%) | 0.94 |
HFOV | 218 (51%) | 33 (56%) | 47 (48%) | 0.66 |
Oxygen dependence at 36 weeks PMA | 247 (57%) | 35 (59%) | 45 (46%) | 0.12 |
Oxygen dependence at discharge | 87 (20%) | 19 (32%) | 16 (16%) | 0.06 |